Hi all,
I have encountered difficulty in implementing this: storing some values from certain loop iterations as reference, and use the reference to subtract all new values generated from later loop iterations.
For example:
My sensor generates an array (size: 768) per timed loop iteration.
I want to generate a background reference array from iteration #201 to iteration #220. Currently I am using stacked shift register (20 shift regsitered stacked) to store the array generated from my sensor. The final background reference array is averaged over 20 arrays from shift registees:
background reference array = (array 1+ array 2 +...array 20)/20
I want to subtract this background reference array from all subsequently collected array.
new array - (array 1+ array 2 +...array 20)/20
The new array can by any array from a later iteration of the timed loop (#221 or beyond).
In other words, I am having trouble generating a fixed reference array for normalizing the real time data I got. And the fixed reference array is collected from the same channel as the real time data.
How do I do this? (I tried the case structure plus stacked shift register, but it does not work...)
Thanks!